About Us

CTA Engineering & Surveying is a full service civil engineering, land surveying, and land planning firm located in Rancho Cordova, California. Our founders, Everett Thorne and David Cooper, established Cooper Thorne and Associates, Inc. in 1979, and guided the company until the turn of the century, serving the needs of clients all over Northern California. By this time, the acronym CTA was so commonly known that successor owners to the business David Crosariol and Brian Allen officially began doing business as CTA Engineering and Surveying in 2005. We are proud to have a team of people in place who are diligent, creative, and thoughtful in their approach to serving our client’s needs. CTA makes it a priority to not just provide services to our clients, but to understand their business and make the extra effort to make decisions as if we were in our client’s shoes each day. We strike an appropriate balance between cost effective designs/value engineering and delivery of a final high quality product that our clients deserve and appreciate.

Our staff has extensive experience not only in delivering CTA’s direct services to our clients, but also in comprehensively managing projects from start to finish for a variety of residential and commercial project types. We manage a variety of consultants including biological, wetland, cultural resource, traffic, noise, air quality, dry utility, and other specialty consultants on a regular basis for our clients and also provide construction management services.

We are grateful to our many clients who have trusted CTA with their business for so many years and value the opportunity to continue serving the needs our industry in Northern California.